Skeletal Structure Problem 2

This is what it will look like.

the figure represents the bond line structure of propanone, whose formula is C3H6O

Propanone, the first ketone. Formula:C3H6O

Em química orgânica, a forma estrutural de um hidrocarboneto é composta de linhas simples, duplas e triplas, que representam respectivamente as ligações.

Quando a estrutura está simplificada, ocultam-se os Carbonos (C), sendo possível identificá-los pelas dobras ou pontas livres das linhas, desse modo encontramos 3 Carbonos e calculamos os Hidrogênios restantes que completam as 4 ligações do primeiro.

Lol ^^ Good question but Why is it named Lewis dot structure when it is a line structure ...

Carbon atoms are at the two ends and the junction, therefore there are 3 carbon atoms. Carbon atom has a valency of 4. The carbon atom at the junction has two bonds with 1 oxygen atom and two carbon atoms at the ends. The two end carbon atoms each has 3 remaining bonds each with a hydrogen atom. Therefore there ae 6 hydrogen atoms.

• Three unnamed vertices -> 3 carbon atoms
• One O -> 1 oxygen atom
• Left unnamed vertices only one line -> 3 hydrogen atoms
• Middle unnamed vertices four lines -> 0 hydrogen atoms
• Right unnamed vertices only one line -> 3 hydrogen atoms

Therefore C3H6O

The above molecule is of acetone, CH3COCH3. Therefore it contains 3 C atoms, 6 H atoms and 1 O atom.